Adverse events40

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

1 to 20 of 40

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Type	Event	Organ system	Group	Affected	At risk	Events
other	Constipation	Gastrointestinal disorders	Tramadol HCl Contramid® Once A Day	73	215	136
other	Constipation	Gastrointestinal disorders	Tramadol HCl Twice a Day (SR)	65	215	143
other	Dizziness	Nervous system disorders	Tramadol HCl Contramid® Once A Day	51	215	85
other	Dizziness	Nervous system disorders	Tramadol HCl Twice a Day (SR)	65	215	97
other	Dry mouth	Gastrointestinal disorders	Tramadol HCl Contramid® Once A Day	20	215	28
other	Dry mouth	Gastrointestinal disorders	Tramadol HCl Twice a Day (SR)	10	215	15
other	Headache	Nervous system disorders	Tramadol HCl Contramid® Once A Day	27	215	37
other	Headache	Nervous system disorders	Tramadol HCl Twice a Day (SR)	38	215	54
other	Nausea	Gastrointestinal disorders	Tramadol HCl Contramid® Once A Day	70	215	121
other	Nausea	Gastrointestinal disorders	Tramadol HCl Twice a Day (SR)	73	215	134
other	Somnolence	Nervous system disorders	Tramadol HCl Contramid® Once A Day	65	215	113
other	Somnolence	Nervous system disorders	Tramadol HCl Twice a Day (SR)	46	215	67
other	Sweating increased	Skin and subcutaneous tissue disorders	Tramadol HCl Contramid® Once A Day	16	215	17
other	Sweating increased	Skin and subcutaneous tissue disorders	Tramadol HCl Twice a Day (SR)	15	215	25
other	Vomiting	Gastrointestinal disorders	Tramadol HCl Contramid® Once A Day	18	215	24
other	Vomiting	Gastrointestinal disorders	Tramadol HCl Twice a Day (SR)	31	215	34
other	Weakness	General disorders	Tramadol HCl Contramid® Once A Day	24	215	33
other	Weakness	General disorders	Tramadol HCl Twice a Day (SR)	31	215	47
serious	Angina Unstable	Cardiac disorders	Tramadol HCl Contramid® Once A Day	0	215	0
serious	Angina Unstable	Cardiac disorders	Tramadol HCl Twice a Day (SR)	1	215	1

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
ClinicalTrials.govNo license stated
NIH RePORTER's clinical studies and project filesPublic domain

Each source's terms

ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
ClinicalTrials.govnone stated
NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

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Twenty rows a page, as JSON. No key.

GET https://conductscience.org/api/trials/v1/NCT00950651/events

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Adverse events40

Sources 3

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